Abstract: A sign assembly have a chassis assembly for supporting indicia plates and for providing proper horizontal alignment of the indicia plates. The chassis assembly includes two chassis members having a medial receptacle for receipt of a support panel and a receptacle for receipt of alignment members. The indicia plates include mating members on distal edges for cooperating with the chassis member alignment members. The mating members and alignment members have cooperating surface configurations to facilitate proper indicia plate horizontal alignment. A tamper resistant assembly prevents unintentional removal of the indicia plates from the chassis assembly.

Abstract: A sign assembly have a chassis assembly for supporting indicia plates and for providing proper horizontal alignment of the indicia plates. The chassis assembly includes two chassis members having a medial receptacle for receipt of a support panel and a receptacle for receipt of alignment members. The indicia plates include mating members on distal edges for cooperating with the chassis member alignment members. The mating members and alignment members have cooperating surface configurations to facilitate proper indicia plate horizontal alignment. A tamper resistant assembly prevents unintentional removal of the indicia plates from the chassis assembly.

Abstract: A polymer composition comprises a melt compounded product of a polyphenylene oxide polymer and a recycled polystyrene material. The recycled polystyrene material exhibits a melt flow index greater than about 25 when devolatized by heating above its glass transition temperature. The polymer composition may be in various forms including extruded pellets, extruded foam, and expandable foam beads.

Abstract: A polymer composition comprises a melt compounded product of a polyphenylene oxide polymer and a recycled polystyrene material. The recycled polystyrene material exhibits a melt flow index greater than about 25 when devolatized by heating above its glass transition temperature. The polymer composition may be in various forms including extruded pellets, extruded foam, and expandable foam beads.

Abstract: A polymer composition comprises a melt compounded product of a polyphenylene oxide polymer and a recycled polystyrene material. The recycled polystyrene material exhibits a melt flow index greater than about 25 when devolatized by heating above its glass transition temperature. The polymer composition may be in various forms including extruded pellets, extruded foam, and expandable foam beads.

Abstract: Foamed thermoplastic blends of Nylon 6,I/T and polycarbonate resin are provided which exhibit good chemical resistance. The foamed blends are useful for making foamed articles such as chemically resistant foamed sheet.

Abstract: A low density extruded structural foam of closed cell structure having good compressive strength comprising a engineered thermoplastic resin, alone, or containing a flame retarding agent and/or nucleating agent, optionally combined with a vinyl aromatic resin, and a blowing agent is produced by feeding said resin, or composition, into a primary extruder wherein mixing, adding a blowing agent which is essentially insoluble in the resin at room temperature but soluble in the melt and further mixing, then optionally passing the mixture to a second, cooling extruder, passing said extruded mixture through a die, then expanding and foaming said composition into a foam article.